Prince Harry talks to Corey Garmon, 24, who lost both his legs after stepping on a Taliban bomb. Credit: John Stillwell/PA Wire

The Prince met US Army specialist Corey Garmon, 24, in the facility's Caren room - a computer-assisted rehab environment.

Garmon, who was injured after stepping on a Taliban bomb in Afghanistan, told Harry it was his "first day on this thing", to which the royal apologised, jokingly saying, "You probably thought you were in for some quiet time!"

Harry also met US Army Staff Sergeant Tim Payne, who lost both his legs in Kandahar, southwestern Afghanistan.

Prince Harry with US Army Staff Sergeant Tim Payne, who lost both his legs in Kandahar. Credit: ITV News/Georgina Brewer

Payne told Harry, "It's all mind over matter".

During his US trip, Harry will fly to the 2013 Warrior Games in Colorado Springs, where more than 200 wounded servicemen and women from the US and Britain will compete.

He will also visit parts of New Jersey affected by Superstorm Sandy and stop for events in New York City before ending his visit by playing in the Sentebale Polo Cup match in Greenwich, Connecticut on Wednesday.